Why do none of these classes ever seem to provide enough information about the actual content?
For example what programming language will be used in this class?
Mediafire also don't give incentives for people to put popular files on their system as far as I can tell.
With most services like MegaUpload/Rapidshare you get paid when people download your files, hence their popularity, its a business for a lot of uploaders.
I think the more interesting stat from that report is the huge lead that iOS has over Android in terms of web use, it seems really strange given Android's explosive growth.
Here again I suspect they are only counting the default Android browser and not all the alternatives, although the iPad might also be a factor.
I believe AppBrain released some stats not too long ago, the vast majority of Apps do verry poorly if I remember correctly, will try and find the report.